Hawking, Stephen, Black holes : the Reith Lectures / Stephen Hawking. - New Delhi : Penguin India , c2016. - 70 p. ; 20 cm. ISBN: 9780857503572 (pbk.) £3.99 Subjects--Topical Terms: Black holes (Astronomy) Dewey Class. No.: 523.8875 , B9/2 Atlantic Publishers & Distributors